Which of the following is true regarding mail notification in special detainer actions?

Mail notification in special detainer actions involves specific legal expectations that support the process. When a copy of the notification is mailed, the law establishes that it is deemed received after a certain period, which is typically three days. This means that the notification is legally recognized as delivered to the tenant, regardless of whether the tenant personally receives it or not, as long as proper procedures are followed. This provision ensures that tenants are adequately informed of the legal actions being taken against them and helps to maintain a fair legal process.

The requirement for the notification period is crucial because it allows sufficient time for tenants to prepare for their court appearance, aligning with principles of due process. Therefore, option C is rooted in the legal framework that governs notification requirements in such proceedings, underscoring the importance of the timing in which the notification is considered delivered.